Which reptile has a tongue that splits into two at the tip for detecting scents?

Snake

What object parted the Jordan River when Joshua led Israel? What is Emperor Palpatine's Sith name? In Bulgaria, what traditional Christmas food is typically an odd number of dishes served without meat? Who famously covered Leonard Cohen's "Hallelujah" in 1994? Which shortstop set the MLB single-season home run record for shortstops in 2002?